Lock



B. S. EGBERT AND A. T. RAYNGR.

LOCK.

APPLICATION FILED SEPT.2. 1919.

Patented Nov. 2, 1920.

BERT S. EGBEBT AND ALBERT '1. RAYNOR, 0F TOLEDO, OHIO.

LOCK.

Specification of Letters Patent.

Patented. Nov. 2, 1920.

Application filed September 2, 1919. Serial No. 320,987.

I '0 all whom it may concern Be it known that we, Bnnr S. Eonnn'r and ALBERT T. RAYNOR, citizens of the United States of America, and residing at Toledo, Lucas county, Ohio, have invented new and useful Locks, of which the following is a specification.

Thi invention relates to holding means for doors.

This invention has utility more particularly when incorporated as a latch and lock device for doors as in buildings for business and residence purposes.

Referring to the drawings:

Figure 1 is a plan view, with parts broken away, of an embodiment of the invention in a door lock;

Fig. .2 is asection of the line ill-11, Fig. 1, of the lock and latch device of Fig. 1;

Fig. 3 is an end elevation of the looking bolt and guide;

Fig. 4 is a partial elevation of the opposite end of locking bolt guide, showing the key for holding the spring in position;

Fig. 5 is a perspective view of the latch releasing coupler;

Fig. 6 is a fragmentary view looking down on the bolt locking means.

Fig. 7 is a perspective view of the bolt locking coupler; and

Fig. 8 is a view of the bolt locking cou pier in looking position.

Advantages of the device of this disclosure reside in its compact, simple form for ready mounting in a door with a minimum of mutilation of such door. For instance, the door 1 may have one opening 2, bored therein directly from the edge, and such opening intercepted by openings 3, 4t, and 5, and with these openings in the door, the door is ready for the full mounting of the combined latch and lock mechanism of this disclosure.

The mechanism of the lock is assembled in a cylindrical tube 6, which at its outer end, is provided with flange wings or portions 7, limiting the inward movement of this tube member 6 in the opening 2. An inwardly extending tongue or flange 8 is provided at this end of the tube member 6. This tube member 6 also has transversely alined openings 9, 10, and 11, in the region of the openings 5, 4, and '3, in the door '1. The inward end of this tube 6 is provided with a slot 12, into which may be inserted a key 13 to hold against rotation an end 14:

of a helical spring 15 which helical spring 15 in position normally throws a tubular bolt member 16 for reciprocation toward the outer flanged end of the tube 6. The reciprocable member 16 has transverse openmgs or slots 16 in the region of the openings 11 in the tube 6. Centrally of the region of the slots 16' and oppositely extend ing therefrom, a pin 17 is mounted in this member 16. V

This member 16 also has farther forward a pin 18 coacting with a notch 19 in cylindrical coupler or look member 20, thereby limiting the oscillation of this coupler or lock member 20 to slightly over 90. This lock member 20, besides being longitudinally cylindrical, is also transversely cylin drical to provide the cylindrically curved ends 21 which have in the shorter length portions of this member 20, recesses or notches 22 disposed for proper coaction with members 23 in eii'ecting positive rotation of this look member 20. In this instance there is shown a pair of these prongs 23. The recesses 22 in the member 23 may normally be concealed by a tumbler 2a having a central slot 25 terminating in a ledge 26 which may be embraced by the pair of prongs 2.8. The tumbler 2a is maintained in position in the door 1 between the guide cylinder 6 and an outer holding plate :26 having a key-hole 27 therein. This key-hole 27 has its major extent vertical for a key 29 whereby in placing the key 29 in position it is inserted into the door so that the prongs 23 are clear of the key-hole, then is rotated 90 before the insertion is completed by the prongs 23 entering the recesses 22 in the lock member 20. vVhen thus engaging the lock cylinder 20, this look cylinder may be rotated 90 to throw the longer extent shoulder 21 into the shorter extent transverse region of the tube 6 thereby holding the bolt or tubular member 16 against reciprocation in the guide or tube 6, as shown in Fig. 8.

This reciprocable bolt or member 16 at its forward end has a proj ecting tongue 30 having a notch 31 therein which may engage a notch 32 in a cylindrical latch coupler 33, effective in assembling this locking bolt 16 as a main member with a latch extension. This connecting means has terminal notches transversely extending, the outer one being shown as notch 34.- and the inner one as the beveled notch 35, showing how this latch member may be actuated by a tool similar fulcrum bearings 18.

to ascrew-driver through opening 36 in the outer plate 28 engaging notch 34, while the notch 35 may be operated by wedge portion 37 of a rotatable member held in face plate 38 mounted by screws 39 on the door 1.

A pair of alined cylindrical openings -10 in the legs of a latch member ll on each side of the tongue 80 permits a mounting of the latch connecting tumbler 33 in position at alining relation with the opening 9 in the guide member 6 and the openings 5 in the door 1. Uperation of the thumb turn 37 rocks the tumbler so that the cylindrical portion of this tumbler engages in the notch 31 of the tongue 30 to effect an assembling of the latch member or extension for positive travel with the bolt member 16. However, whether or not they are so mounted, there is a tendency of the spring 15 normally to thrust the latch outward into locking position. The limit of this travel is determined by ledge 42 of member 41 coming into contact with the flange 8 of the terminal portion ofthe tubular guide 6. A face plate or shield 43 is mounted over the flange portion 7 of this guide 6.

In the region of the opening 3 of the door 1 escutcheons a l are provided mounting fixedly therewith stems 45 carrying fixed handles or knobs 46 which in this instance are shown as non-rotatable. The reciprocation of the bolt or member 16 is effected by mean of latch levers 47 having These levers 17 extend. to the door 1 through openings 3 in the door, through openings 11 in the guide 6, and through openings 16 in the tubular reciprocal member 16 to engage'the pin 17, so that the movement of the levers 47 to draw the pins 17 inwardelfect an unlatching of the door when the latch tumbler 32 connects the latch member 41 with the reciprocating member or bolt 16. However, when this latch tumbler disconnects the latch member 11, shown as of wedge form, from the cylindrical bolt member 16,

the operation of the latch 4:7 does not un,

latch the door. The operation of the lever f? is against the resistance of the spring 15, and this spring 15 is the sole and only spring in the entire latch and lock device.

To render the latch levers d7 inactive,

there may be a rotation through 90 of the lock tumbler-'20, thus causing theshoulder 21 to engage with the recesses 10 in the tubular guiae membe' precluding any reciprocation of the Vmember 16' and thus holding the latch -11 in the latched posi; tion whether or not the latch connecting tumbler 3-3 is in connecting or disconnecting position. While there is shown the outer registry means for concealing the complete key-hole travel in the locking member on the outer side of the door by means of the member 24, the introduction of such a means on the inner side of the door is matter of election, according to how much precautionit is desired to have incorporated in thelock device of this disclosure.

It is accordingly seen by this disclosure that a simple, compact, single bOlb mechanism may be a releasable latch for locking, and may further be a positively held locking bolt.

What is claimed and it is desired to secure by Letters Patent is:

1. A door fastening device comprising a guide, a member reciprocablc in the guide, a spring normally thrusting the reciprocable member in one direction, a latch mem her in the guide toward which the spring thrusts the reciprocable member, one of the said members having transversely extending recesses and the other a notched tongue extending between the said recesses, and a transversely cylindrical control means seating in said recesses and having a notch for engaging in the notch in connecting the latch member to the reciprocable member.

2-. A door fastening device comprising a tubular guide, a tubular bolt member therein, a helical spring in the guide coacting with the bolt member, lever means for actuating the bolt member against the action of the spring, a latch member in alinement with the bolt member and mounted in said guide, control means for connecting the latch member to the bolt member to prevent lever means withdrawal of the latch member, and movable bolt member carried means for locking the bolt against travel in the guide.

BERT S. EGBERT. ALBERT T. RAYNOR. 

